Henan Children's Swimming Pool Water Pressure UV Disinfector

Description :

　　Technical requirements for UV disinfection equipment for children's swimming pools in Henan Province

　　1) Environmental conditions for use: The sterilizer should be able to operate normally under the following conditions.

　　(1) The quality of incoming water

　　a. Chromaticity ≤ 15 degrees

　　b. Water temperature ≥ 5 ℃

　　c. Total coliform count ≤ 1000/L

　　d. Total bacterial count ≤ 2000/mL

　　(2) Air environment

　　Relative humidity in the air ≤ 90% (equivalent to air temperature of 20 ℃± 5 ℃)

　　(3) Power supply

　　2) Basic Technical Requirements for Medium Voltage Ultraviolet Disinfectors

　　(1) The design of the sterilizer should comply with the requirements of GB 8988 "Safety Requirements for Household and Similar General Purpose Electronic and Related Equipment Powered by Electric Power Supply";

　　(2) Disinfectors should be manufactured according to the approved drawings and technical documents in accordance with the technical management regulations and procedures;

　　(3) The interchangeability of components of the same type of sterilizer should be ensured;

　　(4) The surface of the sterilizer exposed to ultraviolet radiation should be polished;

　　(5) The working pressure of the pressure cylinder should not be less than 0.60MPa, and the test pressure should not be less than 0.90MPa;

　　(6) Guide plates should be installed inside the cylinder or box body;

　　(7) The installation requirements for straight tube quartz ultraviolet low-pressure mercury lamps and tubes should comply with YY/T0160 "Straight tube quartz ultraviolet low-pressure mercury disinfection lamps";

　　(8) When there are high requirements for the environment, it is advisable to prioritize the use of low ozone lamps to reduce ozone pollution to the environment;

　　(9) The arrangement of the lamp tube should ensure a uniform distribution of ultraviolet intensity on the surface exposed to ultraviolet radiation;

　　(10) The sterilizer should be equipped with a lamp ignition indicator, a cumulative ignition time indicator, or a relative indicator of ultraviolet radiation intensity;

　　(11) The lamp tube should be separated from water by a quartz glass sleeve, and the transmittance of 253.7mm ultraviolet rays through the quartz sleeve should be greater than 85%;

　　(12) The low-voltage electrical appliances used for disinfectors should meet the technical requirements of the corresponding products;

　　(13) The sterilizer should be equipped with inlet and outlet pipes, discharge pipes, and sampling pipes. When it is inconvenient to place the drain pipe in the sterilizer, it can also be installed on the connecting pipeline at the same location as the sterilizer;

　　(14) The specifications and inlet and outlet pipe diameters of the sterilizer should be selected according to the table;

　　(15) According to the inspection requirements of this standard, for disinfection products equipped with new lamps, the measured ultraviolet radiation dose shall not be less than 12000W · S/cm (filled with water), and for normal functioning disinfection products, the measured ultraviolet radiation dose shall not be less than 9000W · S/cm;

　　(16) According to the usage conditions of this standard, when working at the rated disinfection water volume, the bacteriological indicators of the effluent should comply with the requirements of GB5749 "Sanitary Standards for Drinking Water";

　　(17) The disinfectant material should comply with the requirements of GB/T17219 "Safety Evaluation Standards for Drinking Water Transmission and Distribution Equipment and Protective Materials". Disinfectors should use 304L and 316L stainless steel;

　　(18) The head loss of the sterilizer operating at the rated disinfection water volume should be less than 0.005MPa.

　　3) Appearance requirements

　　(1) The surface of the equipment should be sprayed evenly, with consistent color, and there should be no flow marks, bubbles, paint leakage, or peeling on the surface.

　　(2) The appearance of the equipment should be neat and beautiful, without obvious hammer marks or unevenness. The panel instruments, switches, indicator lights, and signs should be installed firmly and upright.

　　(3) The welding of the equipment casing and skeleton should be firm, without obvious deformation or burn through defects.

　　4) Key points of construction and installation

　　(1) It is not easy to install the ultraviolet generator on the outlet pipe close to the water pump to prevent damage to the quartz glass tube and lamp tube caused by water hammer when the pump is stopped.

　　(2) The ultraviolet generator should be installed strictly in the direction of water inlet and outlet.

　　(3) The ultraviolet generator should have a foundation that is not less than 100mm above the building floor.

　　(4) The ultraviolet generator and its connecting pipes and valves should be firmly fixed, and the ultraviolet generator should not bear the weight of the pipes and accessories.

　　(5) The installation of ultraviolet generators should be easy to disassemble, inspect and maintain, and materials that affect water quality and hygiene should not be used at all pipeline connections.

　　5) Execution standards

　　(1) Product standards

　　UV Disinfectors QB/T

　　Urban Water Supply and Drainage Ultraviolet Disinfection Equipment GB/T

　　CJ/T "Ultraviolet Disinfectors for Drinking Water"

　　(2) Engineering standards

　　Code for Design of Building Water Supply and Drainage GB

　　Code for Design of Outdoor Drainage GB

　　Pollutant Discharge Standards for Urban Sewage Treatment Plants GB

　　GB/T 18920-2002 "Water Quality of Urban Miscellaneous Water for Urban Wastewater Recycling and Utilization"

　　Design Code for Wastewater Reuse Engineering (with Explanations) GB 50335-2002

　　Code for Acceptance of Construction Quality of Building Water Supply, Drainage and Heating Engineering GB 50242-2002

　　(3) Related standards

　　Selection and Installation of Secondary Water Supply Disinfection Equipment "02SS104

　　Ultraviolet radiation can be divided into UV-A (320-400nm), UV-B (275-320nm), UV-C (200-275nm), and vacuum ultraviolet parts based on their biological effects. In water treatment, the UV-C part of ultraviolet radiation is actually used, and it has been proven that the ultraviolet radiation around 260nm has high sterilization efficiency.

　　Advantages of Henan Children's Swimming Pool Water Pressure UV Disinfector

　　1. High efficiency sterilization: Ultraviolet radiation can generally achieve a sterilization rate of 99% -99.9% for bacteria and viruses in one to two seconds.

　　2. High efficiency and broad-spectrum sterilization: The broad-spectrum sterilization of ultraviolet radiation is high, and it can efficiently kill almost all bacteria and viruses.

　　3. No secondary pollution: UV sterilization does not add any chemical agents, so it will not cause secondary pollution to the water and surrounding environment, and will not change any components of the water.

　　4. Safe and reliable operation: Traditional disinfection techniques such as chloride or ozone use disinfectants that are highly toxic and flammable, while ultraviolet disinfection systems do not have such safety hazards.

　　5. Low operation and maintenance costs: UV sterilization equipment occupies a small area and has simple structural requirements, so the total investment is relatively small. In terms of operation costs, it is also relatively low. At the level of 1000 tons of water treatment capacity, its cost is only half of chlorine disinfection.

　　Advantages of Henan Children's Swimming Pool Water Pressure UV Disinfector Products

　　Wide range of sterilization and disinfection: The output wavelength range of the medium voltage ultraviolet lamp tube in the medium voltage ultraviolet sterilization system is relatively wide, between 230nm and 370nm, which can kill all bacteria and viruses and permanently inactivate chlorine resistant microbial tissues, such as Legionella pneumophila, Escherichia coli, Pseudomonas aeruginosa, Cryptosporidium, Amoeba, and bacteria.

　　Strong bactericidal effect: While damaging the DNA structure of microorganisms, it also decomposes them into small fragments. It is precisely because of this medium pressure ultraviolet bactericidal property that the occurrence of photoreactivity and dark repair of DNA in microorganisms can be avoided. Therefore, it can have a long-lasting bactericidal effect on microorganisms without revival reaction or microbial rebound phenomenon.

　　No secondary pollution: No toxic or harmful by-products are produced during the disinfection process, the composition and properties of the disinfected water are not changed, and there is no secondary pollution to the water body and surrounding environment.

　　Decompose residual chlorine and degraded chemical chlorine in water: When using a medium pressure ultraviolet sterilizer for water disinfection, it can reduce the chlorine content in the water, reduce disinfection by-products, and make the water environment healthier. The Henan children's swimming pool water pressure ultraviolet disinfection device has the ability to degrade chemical chlorine, including monochloramine, dichloroamine, trichloroamine, etc. This effectively eliminates the production of carcinogenic substance trihalomethanes and the impact of chemical chlorine on the human body.

　　Low cost of use: Due to the improvement of technology, medium voltage ultraviolet disinfection technology not only has the highest disinfection efficiency among all disinfection methods, but also has simple operation and maintenance, low operating costs, and can reach 4 cents per ton of water at a processing capacity of one thousand tons.

　　Easy installation and operation: The medium voltage ultraviolet disinfection system is designed modularly, easy to install, suitable for complex installation site conditions, and does not damage the equipment, pipelines, and building structures on site. The design of a closed system can be directly installed onto pipelines, with options for horizontal and vertical installation.

　　Small footprint and no noise: The medium pressure ultraviolet disinfection equipment that processes 10000 tons of clean water per day only requires 6 square meters of operating space.

　　Continuous high water disinfection: Currently, ultraviolet disinfection technology has reached a daily processing capacity of 1.5 million tons of water in practical applications. If needed, it can be even larger, which is not easy to achieve with chlorine addition, dechlorination, and ozone disinfection methods.

　　Wide application fields: Medium pressure ultraviolet disinfection equipment can be applied in the catering industry, swimming pools, wastewater, wastewater reuse, and offshore oil and gas, meeting the disinfection requirements of various industries.

　　Characteristics of Henan Children's Swimming Pool UV Disinfector:

　　Medium voltage ultraviolet lamp: Adopting high-quality American imported LightSources brand ultraviolet lamp with high power and reduced lamp configuration, it can handle high flow water bodies. Compared with low-pressure ultraviolet lamps, the pressure ultraviolet disinfection lamp tube in Henan children's swimming pool water has higher ultraviolet intensity and wider radiation wavelength.

　　Temperature probe: Immediately detect the temperature of the water to ensure that the equipment operates within the working temperature range of 0-45 degrees.

　　UV intensity probe: The intensity monitor used in the medium voltage UV sterilizer only responds to specific UV wavelengths that have sterilization effects. It can be connected to computers and PLCs, saving power consumption for the operation of the system.

　　Quartz sleeve: In order to better protect the ultraviolet lamp tube, there is a quartz sleeve outside each ultraviolet lamp tube. Therefore, the quality of quartz tubing largely determines the sterilization effect of medium voltage ultraviolet sterilizers, and high-quality quartz tubing can ensure that the penetration rate of ultraviolet rays reaches over 90%.

　　Daily cleaning: Due to water quality and exposure to ultraviolet light, the surface of the quartz sleeve will crystallize after a period of use. The thickness of the crystals will reach a certain level, which will affect the penetration ratio of ultraviolet light. Therefore, the quartz sleeve needs to be cleaned regularly. The medium voltage ultraviolet sterilizer is equipped with an automatic cleaning system, which can automatically clean the quartz sleeve at regular intervals based on the readings of the ultraviolet intensity detector. During the cleaning process, the system operates normally without the need for water supply or manual intervention, greatly reducing the workload of on-site personnel.

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